Help needed! - virus infection shellllconhidden

I got a virus (the doom worm one), which hasn't done anything bad to my computer as such (presuming my anti virus has prevented damage). Which I have done all i can get remove (using my virus programmes website)

However, and I am presuming they are related, when I switch off the computer, I get a "ending programme" box, that is entitled "Shellllconhidden window", and it needs to stop the programme. What is this programme? I have done a search for it, and cannot find anything to delete.

Another box also comes up when shutting down, something about dslx..........or someother letter formation.